Feeler mechanism for looms



I. snow. FEELER MECHANISM FOR LOOMS.

Reissued J me 1922. APPLICATION FILED APR. 13. 1922. 2 suns-smear 1.

I. SNOW,

- FEELER MECHANLSM FOR LOOMS.

15,376. APPLICATION FILED APR. 13, 1922- 2 SHEETS-SHEET 2.

Baissued June 6, 1922.

Invenor:

UNITED STATES PATENT. OFFICE.

ISAAC SNOW, OF LAWRENCE, MASSACHUSETTS, ASSIGNOR TO DRAPER CORPORATION,

OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

FEEL-ER MECHANISM FOR LOOMS.

' Specification of Reissued Letters Patent. Reissued J 6 1922 OriginalNo. 1,392,806, dated October 4, 1921, Serial No. 379,267, filed May 6,1920. Application f r issue filed April 13, 1922.

To all whom it may concern:

Be it known that I, ISAAC SNow, a citizen of the United States, andresident of Lawrence, in the county of Essex and State of Massachusetts,have invented an Improvement in Feeler Mechanisms for Looms, of whichthe following description, in connection with the accompanying drawings,is a specification, like characters on the drawings representing likeparts.

This invention relates to feeler mechanisms for looms, whereby fillingis replenished when that in the active shuttle becomes substantiallyexhausted. Sensitiveness in the feeler is required in order to preventpremature replenishment of filling, and likewise to effect replenishmentof filling when engagement with the filling when a working supply offilling is present in the shuttle on a detecting beat. The presentinvention is directed more particularly to this type of feelermechanism, and aims to provide such a feeler mechanism which shallanswer the requirements both as to the presence of the working supply offilling in the shuttle, and its substantial absence on a detecting beat.

An important feature of the present invention, therefore, consists of afeeler which is mounted for bo'dily movement toward and from the frontof the loom on a feeler carrier and which has a filling engaging surfacethat is movable in a direction longitudinally of the shuttle due to thebodily longitudinal movement, such movements being effected when thefilling is substantially exhausted on a detecting beat, and prevented byengagement of the feeler with the filling when a working supply ispresent.

The above and. other novel features and combination of parts will behereinafter described in connection with the accompany- Serial No.553,199.

mg drawings which show one good, practical form of the invention,wherein F igure 1 is a perspective view of the feeler side 0f the loom,showing more particularly the ad acent end of the lay and the feelermechanism;

Fig. 2 is a plan View on an enlarged scale, of the feeler mechanismshowing its action when a working supply of filling is present in theshuttle on a detecting beat;and

Fig. 3 is a view similar to that of Fig. 2, showing the action of thefeeler mechanism when the filling is substantially exhausted on adetecting beat.

The loom frame 1 has mountedthereon the brackets 2, one at each side ofthe loom, in which is supported the transverse or rock shaft 3 whichcontrols the filling replenishing mechanism, as usual in this class oflooms.

Rising from the transverse or rock shaft 3 is the arm 4 to which ispivoted at 5 the latch 6, the rear end portion of which is adapted attimes to be engaged by an operatmg member 7 preferably formed as part ofor connected to the cam follower or weft hammer. The latch 6 may bevariously formed, but in the present instance it has pivoted thereto at8, the rear engaging end portion 9 with which the operating member 7makes contact when the filling is to be re-- plenished. Extending fromthe portion 9 is a finger 10 which overlies one arm of a bell cranklever 11 pivotally mounted at 12 to a support 13 secured to the loomframe at 14, the construction being such that movement of the bell crankunder the control of a transmitter 15 will place the rear end of theengaging portion 9 of the latch in the path of the operating member,as'will more fully appear. The transmitter 15 is connected to the bellcrank at 16, and the construction of parts so far described is or may beof usual character.

The lay 17 is provided with. the usual shuttle-box 18, the front wall ofwhich has an opening 19. The shuttle 20 carries the usual filling woundupon a filling carrier or bobbin 21. The wall of the shuttle is providedwith an opening 22 which, when the shuttle is inthedetectinghon,registerswith- I, the opening" 19 otthe front-Wall of the] shuttle-boxfor the entrance of the t'eelen' Extendin -#9 h I 1 rmfnejis the.

shipper stafidvea ayitg na ia slotted at 'for the recefition of a bolt261Whieh ad:

justably' secures to the arm 2 L;the braoketQ'T The feeleris monnteclona feeler carrier for movement toward andfrom thetrontot the loo inlThere are different forinsot tee'ler" carriers, any-oneo twhiclmnightrbe adapted i for the support of the teeler, ,butinthepresent instance of the invention the teeler carrier' :is amountedfor reciprocating:movement1 in the fee-lerrstand", asnwillino'wbedescribed: The feelleistand comprises a 5 plate is 28 I which{maybe, adjustably securedto n the; bracket, 21 'by a bolt 29-passingthrough a" slot 30 of the feeler stand. The feeler stand" h as emitsfront: and rear :porti'ons the ges 81',5aIiclgSQs-rzspectively, whichserve as guides for the feeler, carrier; The feelers carrier 33 extends{through fa: slot: 34 111 13116 rear flange 32. iandlhas axstein 351iproj ecting" through an openingiin.thefront flange 31, theconstructionbeing :suchi thatth'e .feeler carrier may he properly guidedin" its reciprocating move-g mentta The feeler: carrier may 'be conventently formed as: a flat rean portion to which instance .3 the feelrcarrier, which ie desig-J j natedas 'a Whole :by 33 comprises "abottom," plate 37 and a spacednpper plate 38, between? Whi'elrplates ispi votally snpp'orted at 39 the transmitter actuator atOgtd the end ofwhich at 41 is connected the transmitter 1 5. i The stem: is se cnred toandprojects-"front Wardly from the plate s 37 and and on the stein 3'5'is'monnted the spring 42; one end of which bears against the tro'ntendpor- "tions of thepl'ates' BTand and the other end of Whiclthea'rsagainst therear face of =the flan e 31, thej construction beingsuch I that the pringata ormally;niovesthefeeler carrier toj its 11earward; position, A stop" 43 which may be conveniently "provided theform-ofa pin f liinitsthej reartvard Ino eihent Y fthe reelere n-ier;The referee"is-merited? f its fillin engaging surface *in av di 1on iogt111a11yipr the shnttle'j' and "cl between the feelei-flcarrier eitters-"to;sesamebodily-move entof the} feeler relative to thecarrierQdueI'Qtothe movement of'thefeeler'longitrrdinallyiofthe shrrttleunderthe frontwarda,i 'essnre l t hen thefilling fi's snhstantiallyexhausted on. a

detecting; beat Infi the jfjr'esent instance of xiawe mwhe ifee:

has "a series of tee th"46"Whiohengage the I teeth ofa fixed-racks?mounted on the fillr-tor bodily el m-m n thereto, and for movea ing;engagingsurfaced the feeler carrier, the construetlon being such thatshould the feeler move longitudinally of the shuttle, dne

to the .trontwardl pressnre against the fillingl movement would be'aoornpanied'by a hoclily"front'ward movem nt he. :ieelet The feeler l lmay be conveniently enclosed ithin a-honsing {L8 011 the end of theteeler carrier, and its filling-engaging portion or ,teieth d511l5tY-13IOJGClZ through the honslngyas. vindicated, in. l*hgs-..-2 and3, to engage the filling or a surface Within the shuttle. At each sideof the 'housing the feelerjcarrier, has-theiabutting portions 49.which;whenuthe feel'er l t ls moved-bodily frontward; and :1 in

engage a surfaee within the shuttle.

l he:-=b0dily trontw'ardi movement of the. feelerfcarrier, which ispermitted when the; filling-engaging mania tail to be held so adirectionlongitudinally of the shuttle, may

from movement longitudinally of the shuttle by the filling on adetecting beat; is advantageously einployed in the presentfin stance ofthe invention to'efi'ect replenish InentRotfillihg. To this end theteeler tt hasconnected theretofat- 50, the; actuator armfih'tvhichextends front'wardly and is d connecte'dat; 52-to the endportion H 53 ofthe transinitteralctnator 40; which as hereinhe= for-e described, ispivotally connected to" thefeelercarrier'at 7? I Thel'ffeeler may benormally held in, its

rearwardteelingjaosition 'relative to the I the present instance:otthe'n vention, coma w feelencarrier fby jsn itable means .Wh-ich, in-

prisesthe weight oit'thelatch 6 resting upon the bell eralnthei'sensitiveness 'otthe teeler is such that najr'y weaying. purposes;to hold the feeler in lts rearward position.

I Q1111." This otfcourse may be augmented, 1t desired, by other means,but

H L L the weight of the latch issuthcieirt "tor ordllvjhen'aworkingsupplyispresent'in the shn't tle a d t teeth 45 the sink "into.it s cting beat, the engaging that on fii1'tl1er frontward strncted Thythe filling,

ing f replenislnnent v is not called. l Vhfen, however; the filling is]substantially exhan'stedon a detectrng heat, as indicatedin ler engagethe filling and 1wa st pressure, and the 'feeler rtake of'sueh movement,with; the

-nioven enthiffthe'jlay, movement ofthe filling engaging; teeth of thefeeleriina direcv tio'n longitntlinally of'the shuttle is ole-" andconseqnentbry bodily frontwardl moveinent on the feeler npoirthev teetercarrier, due to the engaging teeth tfiand rack at? is prex' ented, andfillk Fig-1K3, fi l'efeng'aging teeth lt') ot the' teeler will no longerbe held bj j the filling from moyelnentlongitudinally of the shuttleunder'th'r 1t V 44' win;

"result that "the teethefiand rack 47 will etfect bodily frontwardorrolling movement of the feeler upon the feeler carrier and movethetransmitter actuator 40 from the position indicated. in Fig. 2 to thatindi cated in Fig. 3, and effect replenishment of filling by placing theend of the latch 6 in the path of the operating member 7 What is claimedis: V

1. In a feelermechanism for looms, the combination of a feeler carriermounted for movement toward and from the front of the loom, a rack whichis fixed relative tothe feeler carrier, a feeler that is mounted on thefeeler carrier for bodily movement frontward relative thereto and formovement in a direction longitudinally of the shuttle and which is heldfrom such movements by engagement with the filling on a detecting beatuntil the filling is substantially exhausted, and rack teeth on thefeeler which engage the fixed rack on the feeler carrier.

2. In a feeler mechanism for looms, the combination of a feeler carriermounted for movement toward and from the front of the loom, a feelerthat is mounted on the feeler carrier for rotative movement relative tothe longitudinal axis of the shuttle and for bodily movement in afrontward direction relative to the feeler carrier and that is held fromsaid movements by engagement with the filling on a detecting beat untilsubstantial exhaustion thereof, and means for effecting replenishment offilling when the feeler is rotated and moved bodily relative to thefeeler carrier.

3. In a feeler mechanism for looms, the combination of a feeler carriermounted for movement towards and from the front of the loom, a feelermounted for movement rela. tive to the carrier in two directions, one aturning movement relative to the longitudinal axis of the shuttle due tothe frontward pressure upon the feeler when the filling is substantiallyexhausted on a detecting beat and the other a bodily movement relativeto the carrier which is dependent upon the turning movement, and meansfor effecting replenishment of filling when the feeler partakes of suchmovements on a detecting beat.

4. In a feeler mechanism for looms, the combination of a feeler carrier,a feeler mounted on the feeler carrier for rotative movement relative tothe longitudinal axis of the shuttle and held from such movement by thefilling on a detecting beat until the filling is substantiallyexhausted, connections between the feeler and feeler carrier whicheffect bodily frontward movement of the feeler relative to the carrierdue to the rotative movement of the feeler, and means operated byfrontward bodily movement of the feeler relative to the feeler carrierfor effecting replenishment of filling.

5. In a feeler mechanism for looms, the combination of a feeler carrier,a feeler mounted on the feeler carrier for movement of its fillingengaging surface longitudinally of the shuttle and held from suchmovement by the filling on a detecting beat until the filling issubstantially exhausted, connections between the feeler and feelercarrier comprising teeth on the feeler and a rack on the feelercarriage, which efi'ect bodily frontward movement of the feeler relativeto the carrier due to the movement of the filling engaging teeth of thefeeler longitudinally of the shuttle, and means operated by frontwardbodily movementof the feeler relative to the feeler carrier foreffecting replenishment of filling.

6. In a feeler mechanism for looms, the combination of a feeler carrierhaving a housing, feeder mounted within the housing for movement bodilytherein and for rotative movement relative to the longitudinal axis ofthe shuttle by the frontward pressure and held from such movements byengagement with the filling on a detecting beat until substantialexhaustion of filling, connections between the feeler and feeler carrierfor causing bodily frontward movement of the feeler relatively to thefeeler carrier when it is rotated, relative to the longitudinal axis ofthe shuttle on a detecting beat and means for effecting replenishment offilling.

7. In a feeler mechanism, the combination of a feeler carrier, a feelermounted for rotative movement and rack and pinion connection between thefeeler and feeler carrier for converting the rotative movement of thefeeler into a rolling movement relative to the feeler carrier, andfilling engaging teeth for holding the feeler from moving' relative tothe carrier until filling is substantially exhausted.

S. In a feeler mechanism for looms, the combination of a feeler carriermounted for movement toward and from the front of the loom, a feelerwhich is mounted for rotative movement relative to the longitudinal axisof the shuttle and frontward bodily movement relative to the carrier bythe frontward pressure of a surface within the shuttle on a detectingbeat when the filling .is substantially exhausted, and means connectedto the feeler for effecting replenishment of, filling when the feeler isso moved on a detecting beat.

9. A feeler mechanism comprising in combination, a feeler carrier, arack secured to the carrier, a feeler having rack teeth engaging thefixed and filling eng'agingteeth for engaging the filling in theshuttle, and means for normally holding the feeler in feeling positionand movable by the feeler when the cooperating teeth of the feeler andrack cause frontward movement of the feeler due to the filling engagingteeth moving along the filling carrier 011 a detecting beat.

10. In a feeler mechanism for looms, the

I combination of a 'feeler carrier, j a feelen combination "of a,vfeelena carrier, a fi feelerl; mounted .to.v roll bodily along" the.-,,fee1er can riei'i towards and Ifromwthe front of the 100m, filling:engaging, teeth for holding:,the;;jfeelei'i I on; a, detecting beat fromsaiclrolling move:v

ment :until filling is substantially!Iexhaustecl andmmean'sl. foreffectingreplenishment of' filling" when, said ii rolling, movement isimpartedato the feeler; l

11 In a feeler=Ineehanismvf0r looms, the

mounted t9; have: a rolling; movement; im-; parted thereto by frontwardpressure 2 upon: the feeler to roll the feeler along the =feelen icarrier, and;l teeth; .uppn the feelerto en; gauge the filling upon; a==detecting, beat and hold the feeler from said; rolling movement;

until filling is substantially ;exhausted;

In testimony, whereof; Lhave; signedr my name to this speeifieatien y l1 VISAAGESNQWL]

